Actually, it's not called blind baseball; it's called "Beep" Baseball, because the ball beeps as it's coming to the plate, which makes sense, considering the batter can't see it. The rules are, well, they're complicated: "Article 1...In Beep Baseball, each of the two teams is permitted six turns at bat during which it attempts to score runs by having its batters hit the beeping ball into fair territory and reach a buzzing (activated) base before the ball is legally fielded by the defense. The team in the field attempts to end the turn at bat of the opponent by causing three of its batters to be put out."